> 0 there exists
> 0 such that if
x 
D
and
c - < x < c
then
| f(x) - L | < .
We write
f(x) = L.
> 0 there exists
> 0 such that if
x D
and
c < x < c +
then
| f(x) - L | < .
We write
f(x) = L
closure(D).
Then:
> 0 there exists
> 0 such that if
x D
and
c - < x < c
then
| f(x) - L | < .
We write
f(x) = L.
> 0 there exists
> 0 such that if
x D
and
c < x < c +
then
| f(x) - L | < .
We write
f(x) = L
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